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QFN 4x4 plastic package performance at E-band

E-band has lately turned available for cell phone providers in Europe. Ericsson has today working mini
links at these frequencies but they are expensive to manufacture. Here the QFN 4x4 plastic package is
examined for E-band performance. This package meets Borås production line and is therefore cost
effective to produce. Old measurements and simulations have been validated and compared and new
matching networks for two sub frequencies have been designed. Solutions for the 71-76 GHz band and
for 81-86 GHz band have been reached. The simulations show that a pass band with return loss less than
15 dB and insertion loss less than 1 dB can be achieved for both sub frequencies. Last these matching
networks were simulated on a computer with higher accuracy. However the last validation simulations
with higher precision did not confirm the realized pass band performance for the higher sub band.

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BibTeX @mastersthesis{Sjögren2011,author={Sjögren, Kristoffer},title={QFN 4x4 plastic package performance at E-band},abstract={E-band has lately turned available for cell phone providers in Europe. Ericsson has today working mini
links at these frequencies but they are expensive to manufacture. Here the QFN 4x4 plastic package is
examined for E-band performance. This package meets Borås production line and is therefore cost
effective to produce. Old measurements and simulations have been validated and compared and new
matching networks for two sub frequencies have been designed. Solutions for the 71-76 GHz band and
for 81-86 GHz band have been reached. The simulations show that a pass band with return loss less than
15 dB and insertion loss less than 1 dB can be achieved for both sub frequencies. Last these matching
networks were simulated on a computer with higher accuracy. However the last validation simulations
with higher precision did not confirm the realized pass band performance for the higher sub band.},publisher={Institutionen för mikroteknologi och nanovetenskap, Chalmers tekniska högskola},place={Göteborg},year={2011},keywords={packaging, microwave},note={49},}

RefWorks RT GenericSR PrintID 156814A1 Sjögren, KristofferT1 QFN 4x4 plastic package performance at E-bandYR 2011AB E-band has lately turned available for cell phone providers in Europe. Ericsson has today working mini
links at these frequencies but they are expensive to manufacture. Here the QFN 4x4 plastic package is
examined for E-band performance. This package meets Borås production line and is therefore cost
effective to produce. Old measurements and simulations have been validated and compared and new
matching networks for two sub frequencies have been designed. Solutions for the 71-76 GHz band and
for 81-86 GHz band have been reached. The simulations show that a pass band with return loss less than
15 dB and insertion loss less than 1 dB can be achieved for both sub frequencies. Last these matching
networks were simulated on a computer with higher accuracy. However the last validation simulations
with higher precision did not confirm the realized pass band performance for the higher sub band.PB Institutionen för mikroteknologi och nanovetenskap, Chalmers tekniska högskola,LA engOL 30